I'm sorry that I can't remember all your history, but your increasing symptoms do sound like they could be caused by your various diagnoses. Is your doctor doing further tests, like new MRI's to see what has worsened? Or maybe you're just undergoing treatments. I have an intraferential stimulator unit, which is similar to a TENS; the way my physical therapist put it was that the TENS is only for pain but the one I have is for pain and to increase blood flow to the area. It's more like the one he uses in his office. I got it at no charge as the reps. from the company had some to give out when I was in PT. Of course, they charge your insurance for all the supplies! And boy they go through 9V batteries - I had to find rechargable 9V's. But it does help. Along with numerous meds.
Bonnie - yes, MPS can cause a lot of problems, but please remember there are lots of other causes of pain, especially when nerves are compressed somewhere in the spinal column. It's great, though, that the cause of your pain was discovered and treated, and that you're able to get back to work!
Keep checking into it, Kara. BTW didn't you move recently? I wonder if that caused some additional problems.